CN210588171U - A fixture for turning thin ring workpieces - Google Patents
A fixture for turning thin ring workpieces Download PDFInfo
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- CN210588171U CN210588171U CN201921092202.8U CN201921092202U CN210588171U CN 210588171 U CN210588171 U CN 210588171U CN 201921092202 U CN201921092202 U CN 201921092202U CN 210588171 U CN210588171 U CN 210588171U
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Abstract
本实用新型公开了一种车削薄型环类工件的夹具，包括固定部、压紧部，所述固定部一端面上设置有与薄型环类工件内边缘相适应的第一凸台，所述压紧部包括第一压板、第二压板、第一固定件、第二固定件，所述第一压板通过所述第一固定件与所述固定部连接，所述第二压板通过所述第二固定件与所述第一凸台连接，所述薄型环类工件设置于所述压紧部和所述固定部之间；该装置结构简单，工件装夹后，平实、可靠、服帖，装夹后压紧力均匀分布，有效保证工件轴向尺寸精度，工件加工成品率高。
The utility model discloses a fixture for turning thin ring workpieces, which comprises a fixing part and a pressing part. One end surface of the fixing part is provided with a first boss adapted to the inner edge of the thin ring workpiece. The tightening part includes a first pressing plate, a second pressing plate, a first fixing member, and a second fixing member, the first pressing plate is connected with the fixing part through the first fixing member, and the second pressing plate is connected by the second fixing member. The fixing piece is connected with the first boss, and the thin ring-like workpiece is arranged between the pressing part and the fixing part; the structure of the device is simple, and after the workpiece is clamped, it is flat, reliable, compliant, and clamped. The rear pressing force is evenly distributed, effectively ensuring the axial dimensional accuracy of the workpiece, and the workpiece processing yield is high.
Description
Technical Field
The utility model belongs to the technical field of the lathe work, especially, relate to an anchor clamps of slim lopps work piece of turning.
Background
A machining method in which excess material on a surface of revolution is cut off by a tool on a machine tool to obtain a desired size, shape accuracy and surface quality is called turning, and turning is the most widely used machining method in machine manufacturing, and is mainly used for machining various surfaces of revolution such as a turned end surface and the like.
Turning of the thin ring-shaped workpiece is a common machining type, for example, two end faces of the thin ring-shaped workpiece are turned with grooves such as rectangular, V-shaped, chamfered and cut at an outer circle. When the thin ring-shaped workpiece is turned, a pressure plate is added on a disc chuck to fix the periphery of a workpiece blank.
For the processing of thin ring workpieces, the disadvantages of adopting a faceplate for fixing are more, firstly, the clamping is more complicated, the time for fastening a pressing plate screw is more, secondly, when the end face is processed, the workpiece blank is too thin and is not easy to clamp, so that the processing requirements are difficult to ensure, in addition, more pressing plates are added around the workpiece blank, the pressing plates cannot enable all points around the workpiece blank to obtain uniform pressure, the capability of the thin ring workpiece material for bearing cutting force is weak, if each clamping point around the workpiece blank cannot obtain uniform pressure, namely pressing force, the cutting force can be concentrated on a plurality of clamping points during cutting, the cutting force born by the thin ring workpiece locally exceeds the resistance, the workpiece is torn and damaged, the workpiece is scrapped, and the yield of the workpiece is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve lies in: the clamp for turning the thin ring-shaped workpiece has the advantages that the pressing force provided by the existing clamp for turning the thin ring-shaped workpiece cannot be uniformly distributed, so that the finished product rate of the machined workpiece is low, and the clamp for turning the thin ring-shaped workpiece is provided.
The utility model discloses a solve above-mentioned technical problem through following technical scheme, the utility model discloses an anchor clamps of thin lopps work piece of turning, including fixed part, the portion of compressing tightly, thin lopps work piece set up in compress tightly the portion with between the fixed part, be provided with on the fixed part terminal surface with the first boss that thin lopps work piece inward flange suited, the portion of compressing tightly includes first clamp plate, second clamp plate, first mounting, second mounting, first clamp plate passes through first mounting with the fixed part is connected in order to compress tightly the outward flange of thin lopps work piece, the second clamp plate passes through the second mounting with first boss is connected in order to compress tightly the inward flange of thin lopps work piece.
Furthermore, the second fixing piece is provided with a bolt, the first boss is provided with a screw hole corresponding to the bolt, the second pressing plate is provided with a through hole corresponding to the bolt, and the bolt penetrates through the through hole and is connected with the screw hole so as to connect the second pressing plate with the first boss.
Furthermore, the cross sections of the second pressing plate and the first boss are circular, the screw hole is formed in the circle center of the first boss, the through hole is formed in the circle center of the second pressing plate, and the screw hole and the through hole are correspondingly formed.
Further, the diameter size of the second pressing plate is larger than the inner edge size of the thin ring-like workpiece and smaller than the outer edge size of the thin ring-like workpiece.
Further, the first fixing piece is a ring-shaped piece fixed on the first pressing plate, first threads are arranged on the outer surface of the fixing portion, second threads are arranged on the inner surface of the first fixing piece, the first threads and the second threads are correspondingly arranged, and the first pressing plate and the fixing portion are in threaded connection through the first threads and the second threads.
Further, the cross section of the first pressing plate is arranged to be circular, and the inner diameter of the first pressing plate is larger than the diameter of the second pressing plate.
Further, the height dimension of the first boss is smaller than the thickness dimension of the thin ring-like workpiece.
Furthermore, a second boss used for clamping the processing equipment is arranged on the end face, far away from the first boss, of the fixing part.
Further, the clamp for turning the thin ring-shaped workpiece further comprises a locking rod for screwing or disassembling the first fixing piece; the first fixing piece is provided with a unthreaded hole matched with the locking rod, and the locking rod penetrates through the unthreaded hole to be connected with the first fixing piece.
Compared with the prior art, the utility model has the following advantages:
the device has the advantages of simple structure, safety and reliability, aiming at thin ring-shaped workpieces, the workpiece clamping is flat, solid, reliable and conformable, the pressing force is uniformly distributed after clamping, the axial size precision of the workpiece is effectively ensured, the finished product rate of the workpiece processing is high, the workpiece clamping is rapid, the processing efficiency is high, and the manufacturing cost is low.
Drawings
Fig. 1 is a schematic structural view of the fixture for turning thin ring workpieces according to the present invention;
FIG. 2 is a schematic structural view of the fixing portion;
FIG. 3 is a schematic structural view of the first fastener;
FIG. 4 is a schematic structural view of the second platen;
FIG. 5 is a schematic diagram of the operation of the fixture for turning a thin ring-like workpiece;
FIG. 6 is a schematic view of the end face machining process of the thin ring-shaped workpiece by the fixture for turning the thin ring-shaped workpiece;
the respective symbols in the figure:
1-a fixed part, 2-a first pressing plate, 3-a second pressing plate, 4-a second fixing piece, 5-a locking rod, 6-a thin ring-shaped workpiece, 7-a turning tool, 8-a first boss, 9-a first fixing piece, 10-a second boss, 11-a first thread, 12-a screw hole, 13-a second thread, 14-a unthreaded hole, 15-a three-jaw chuck and 16-a through hole.
Detailed Description
The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.
Example 1
As shown in fig. 1, the present embodiment discloses a fixture for turning a thin ring-shaped workpiece, which includes a fixing portion 1 and a pressing portion, wherein the fixing portion 1 is a cylinder, and the upper end of the fixing portion is provided with a first boss 8 adapted to an inner edge of the thin ring-shaped workpiece 6 for concentrically positioning the thin ring-shaped workpiece 6; the pressing portion comprises a first fixing piece 9, a second fixing piece 4, a first pressing plate 2 and a second pressing plate 3, the thin ring type workpiece 6 is arranged between the pressing portion and the fixing portion 1, the first pressing plate 2 is connected with the fixing portion 1 through the first fixing piece 9, the outer edge of the thin ring type workpiece 6 is pressed, and the second pressing plate 3 is connected with the first boss 8 through the second fixing piece 4, and the inner edge of the thin ring type workpiece 6 is pressed.
Generally, the diameter of the second presser plate 3 is larger than the inner edge of the thin-type ring-like workpiece 6 and smaller than the outer edge of the thin-type ring-like workpiece 6. Specifically, when the thin ring-shaped workpiece 6 is annular, the diameter of the second pressing plate 3 is larger than the inner diameter of the thin ring-shaped workpiece 6 and smaller than the outer diameter of the thin ring-shaped workpiece 6; when the thin ring-like workpiece 6 is a heterogeneous ring-like workpiece, the diameter of the second presser plate 3 is larger than the shortest distance between two points on the inner edge of the thin ring-like workpiece 6 and smaller than the shortest distance between two points on the outer edge of the thin ring-like workpiece 6, so that the second presser plate 3 does not affect the processing operation of the outer edge in a state of pressing the inner edge of the thin ring-like workpiece 6. Wherein, the shortest distance between two points on the inner edge is the shortest distance between two intersection points on the inner edge of the straight line passing through the center of the thin-type ring workpiece 6; the shortest distance between two points on the outer edge is the shortest distance between two intersection points of a straight line passing through the center of the thin-type ring-like workpiece 6 on the outer edge.
Preferably, the radius of the second pressing plate 3 is slightly smaller than the shortest distance from the position to be turned on the thin ring-shaped workpiece 6 to the center of the thin ring-shaped workpiece 6, the outer edge of the second pressing plate 3 is located near the position to be turned on the thin ring-shaped workpiece 6, and the inner edge of the thin ring-shaped workpiece 6 is tightly pressed, so that the thin ring-shaped workpiece 6 is not deformed in the turning process, wherein the shortest distance from the position to be turned on the thin ring-shaped workpiece 6 to the center of the thin ring-shaped workpiece 6 is the shortest distance between any point on the position to be turned and the center of the thin ring-shaped workpiece 6.
After clamping, the first pressing plate 2 and the second pressing plate 3 can apply uniform pressure to the inner edge and the outer edge of the thin ring-shaped workpiece 6, namely, the pressing force provided by the clamp for turning the thin ring-shaped workpiece 6 to the thin ring-shaped workpiece 6 is uniformly distributed, and the cutting force can be uniformly distributed during cutting, so that the device can prevent the thin ring-shaped workpiece 6 from being torn and damaged during processing, and has the advantages of high workpiece processing yield, safety, reliability and simple structure.
Preferably, the lower end of the fixing part 1 is provided with a second boss 10 for mounting the fixture on a lathe three-jaw chuck 15.
Example 2
As shown in fig. 2 and fig. 3, fig. 2 is a schematic structural diagram of the fixing portion in this embodiment, and fig. 3 is a schematic structural diagram of the first fixing element in this embodiment.
In this embodiment, the first fixing member 9 is a ring-shaped member fixed on the first pressing plate 2, the outer surface of the fixing portion 1 is provided with a first screw thread 11, the inner surface of the first fixing member 9 is provided with a second screw thread 13, and the first pressing plate 2 and the fixing portion 1 are in threaded connection through the first screw thread 11 and the second screw thread 13, so that the first pressing plate 2 presses the outer edge of the thin ring-shaped workpiece 6, and the clamp can clamp the thin ring-shaped workpieces 6 with different thicknesses through screw adjustment.
Generally, the height dimension of the first boss 8 is smaller than the thickness dimension of the thin ring-shaped workpiece 6, so that the second pressing plate 3 can press the inner edge of the thin ring-shaped workpiece 6, and the first boss 8 is provided with a screw hole 12 at the position of the center of a circle, so that the pressing force applied to the inner edge of the thin ring-shaped workpiece 6 is distributed more uniformly.
In this embodiment, the fixture for turning the thin ring-shaped workpiece 6 is further provided with a locking rod 5, two unthreaded holes 14 matched with the locking rod 5 are formed in the outer edge of the first fixing member 9, the locking rod 5 is inserted into the unthreaded holes 14, connection between the locking rod 5 and the first fixing member 9 is achieved, and the locking rod 5 is pushed to screw the first fixing member 9 more conveniently.
The other embodiments are the same as example 1.
Example 3
As shown in fig. 4, fig. 4 is a schematic structural diagram of the second pressure plate according to this embodiment, in this embodiment, the second fixing member 4 is provided as a bolt, a through hole 16 is provided at a center position of the second pressure plate 3, and the bolt passes through the through hole 16 to connect with the screw hole 12, so as to connect the second pressure plate 3 with the first boss 8, thereby pressing the inner edge of the thin-type ring-like workpiece 6.
The other embodiments are the same as example 1.
Example 4
As shown in fig. 5, in the clamp for turning the thin ring-shaped workpiece according to the embodiment, the second fixture 4 is provided as a bolt, and in operation, the fixing portion 1 is clamped on the lathe three-jaw chuck 15, the thin ring-shaped workpiece 6 is sleeved around the outer edge of the first boss 8 of the fixing portion 1, and then the second press plate 3 is connected with the first boss 8 through the bolt, so as to press the inner edge of the thin ring-shaped workpiece 6, and the turning tool 7 can cut the outer edge of the thin ring-shaped workpiece 6.
As shown in fig. 6, after the outer edge of the fixture for turning the thin ring-shaped workpiece is cut, the first fixture 9 is screwed into the first thread 11 of the fixing portion 1, the locking rod 5 is inserted into the unthreaded hole 14, and then the first fixture 9 is screwed, the first pressing plate 2 presses the outer edge of the thin ring-shaped workpiece 6, and the turning tool 7 can machine the end face of the thin ring-shaped workpiece 6.
The other embodiments are the same as example 1.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The utility model provides a clamp for turning thin lopps work piece, its characterized in that includes fixed part, compresses tightly the portion, thin lopps work piece set up in compress tightly the portion with between the fixed part, be provided with on the fixed part terminal surface with the first boss that thin lopps work piece inward flange suited, compress tightly the portion and include first clamp plate, second clamp plate, first mounting, second mounting, first clamp plate passes through first mounting with the fixed part is connected in order to compress tightly the outward flange of thin lopps work piece, the second clamp plate pass through the second mounting with first boss is connected in order to compress tightly the inward flange of thin lopps work piece.
2. The clamp for turning a thin ring-like workpiece according to claim 1, wherein said second fixing member is a bolt, said first boss is provided with a screw hole corresponding to said bolt, said second pressing plate is provided with a through hole corresponding to said bolt, and said bolt passes through said through hole and is connected with said screw hole to connect said second pressing plate with said first boss.
3. The clamp for turning a thin ring-like workpiece according to claim 2, wherein the cross-sections of the second pressing plate and the first boss are circular, the screw hole is disposed at the center of the first boss, the through hole is disposed at the center of the second pressing plate, and the screw hole and the through hole are correspondingly disposed.
4. The fixture for turning a thin ring-like workpiece according to claim 3, wherein the diameter dimension of said second pressing plate is larger than the inner edge dimension of said thin ring-like workpiece and smaller than the outer edge dimension of said thin ring-like workpiece.
5. The fixture for turning a thin ring-like workpiece according to claim 1, wherein the first fixing member is configured as a ring-shaped member fixed on the first pressing plate, the outer surface of the fixing member is provided with a first thread, the inner surface of the first fixing member is provided with a second thread, the first thread and the second thread are correspondingly arranged, and the first pressing plate and the fixing member are connected by the first thread and the second thread.
6. The clamp of claim 1, wherein said first clamping plate has a circular cross-section and an inner diameter greater than a diameter of said second clamping plate.
7. The fixture for turning a thin ring-like workpiece according to claim 1, wherein the height dimension of said first boss is smaller than the thickness dimension of said thin ring-like workpiece.
8. The clamp for turning a thin ring-like workpiece according to claim 1, wherein a second boss for clamping by a machining device is arranged on an end surface of the fixing portion away from the first boss.
9. The clamp for turning a thin ring-like workpiece according to claim 1, further comprising a locking bar for tightening or loosening said first fixture; the first fixing piece is provided with a unthreaded hole matched with the locking rod, and the locking rod penetrates through the unthreaded hole to be connected with the first fixing piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921092202.8U CN210588171U (en) | 2019-07-12 | 2019-07-12 | A fixture for turning thin ring workpieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921092202.8U CN210588171U (en) | 2019-07-12 | 2019-07-12 | A fixture for turning thin ring workpieces |
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| Publication Number | Publication Date |
|---|---|
| CN210588171U true CN210588171U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921092202.8U Active CN210588171U (en) | 2019-07-12 | 2019-07-12 | A fixture for turning thin ring workpieces |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370034A (en) * | 2019-07-12 | 2019-10-25 | 中国电子科技集团公司第三十八研究所 | A kind of fixture of the slim annular workpieces of turning |
| CN112517946A (en) * | 2020-12-01 | 2021-03-19 | 南京高精轨道交通设备有限公司 | Clamp and lathe |
-
2019
- 2019-07-12 CN CN201921092202.8U patent/CN210588171U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110370034A (en) * | 2019-07-12 | 2019-10-25 | 中国电子科技集团公司第三十八研究所 | A kind of fixture of the slim annular workpieces of turning |
| CN112517946A (en) * | 2020-12-01 | 2021-03-19 | 南京高精轨道交通设备有限公司 | Clamp and lathe |
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